Terminal:

Accessing the terminal is generally performed by clicking an icon which resembles the following:

The terminal may also be referred to as the shell or the command line. Only the keyboard is used when interacting with the terminal. Some useful operations are that pressing the up arrow will recall the last command entered. Continuing to the press the up arrow will recall previously entered commands. The tab key is used as an auto-complete. It can serve two functions: both auto-completing if enough of the command has been entered and is unambiguous, and, if auto-completed, giving the user a sort of confirmation that the command will be accepted.